block/DAC960.c: make some arrays static const, shrinks object size

Don't populate the arrays ReadCacheStatus, WriteCacheStatus and SenseErrors on the stack but instead make them static const. Makes the object code smaller by 47 bytes: Before: text data bss dec hex filename 160974 34628 832 196434 2ff52 drivers/block/DAC960.o After: text data bss dec hex filename 160671 34884 832 196387 2ff23 drivers/block/DAC960.o (gcc version 8.2.0 x86_64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
mariux64 · Aug 21, 2018 · 1e7da86 · 1e7da86
1 parent f5bbbbe
commit 1e7da86
Showing 1 changed file with 24 additions and 18 deletions.
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
@@ -2428,16 +2428,20 @@ static bool DAC960_V2_ReportDeviceConfiguration(DAC960_Controller_T
     {
       DAC960_V2_LogicalDeviceInfo_T *LogicalDeviceInfo =
 	Controller->V2.LogicalDeviceInformation[LogicalDriveNumber];
-      unsigned char *ReadCacheStatus[] = { "Read Cache Disabled",
-					   "Read Cache Enabled",
-					   "Read Ahead Enabled",
-					   "Intelligent Read Ahead Enabled",
-					   "-", "-", "-", "-" };
-      unsigned char *WriteCacheStatus[] = { "Write Cache Disabled",
-					    "Logical Device Read Only",
-					    "Write Cache Enabled",
-					    "Intelligent Write Cache Enabled",
-					    "-", "-", "-", "-" };
+      static const unsigned char *ReadCacheStatus[] = {
+        "Read Cache Disabled",
+        "Read Cache Enabled",
+        "Read Ahead Enabled",
+        "Intelligent Read Ahead Enabled",
+        "-", "-", "-", "-"
+      };
+      static const unsigned char *WriteCacheStatus[] = {
+        "Write Cache Disabled",
+        "Logical Device Read Only",
+        "Write Cache Enabled",
+        "Intelligent Write Cache Enabled",
+        "-", "-", "-", "-"
+      };
       unsigned char *GeometryTranslation;
       if (LogicalDeviceInfo == NULL) continue;
       switch (LogicalDeviceInfo->DriveGeometry)
@@ -4339,14 +4343,16 @@ static void DAC960_V1_ProcessCompletedCommand(DAC960_Command_T *Command)
 static void DAC960_V2_ReadWriteError(DAC960_Command_T *Command)
 {
   DAC960_Controller_T *Controller = Command->Controller;
-  unsigned char *SenseErrors[] = { "NO SENSE", "RECOVERED ERROR",
-				   "NOT READY", "MEDIUM ERROR",
-				   "HARDWARE ERROR", "ILLEGAL REQUEST",
-				   "UNIT ATTENTION", "DATA PROTECT",
-				   "BLANK CHECK", "VENDOR-SPECIFIC",
-				   "COPY ABORTED", "ABORTED COMMAND",
-				   "EQUAL", "VOLUME OVERFLOW",
-				   "MISCOMPARE", "RESERVED" };
+  static const unsigned char *SenseErrors[] = {
+    "NO SENSE", "RECOVERED ERROR",
+    "NOT READY", "MEDIUM ERROR",
+    "HARDWARE ERROR", "ILLEGAL REQUEST",
+    "UNIT ATTENTION", "DATA PROTECT",
+    "BLANK CHECK", "VENDOR-SPECIFIC",
+    "COPY ABORTED", "ABORTED COMMAND",
+    "EQUAL", "VOLUME OVERFLOW",
+    "MISCOMPARE", "RESERVED"
+  };
   unsigned char *CommandName = "UNKNOWN";
   switch (Command->CommandType)
     {